BCD20034-G Rev. AD, 11-May-10

Page 3 of 15

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FNP600/850/1000 AC-DC Front-Ends

& FNR-5-12G/FNR-5-48G Power Shelves Data Sheet

Output Specifications

Parameter

Conditions/Description

Min.

Nom.

Max.

Units

Efficiency: FNP600-48

FNP1000-48

FNP600-12

FNP850-12

Full rated load at 230 VAC input.

88

88

84

84

89.5

89.5

87

87

%

Minimum Load

Minimum loading required to maintain regulation.

0

A

Output Power

FNP1000

FNP850

FNP600

1006

856

600

W

Overshoot

Output voltage overshoot at turn-on.

3

%

Transient Response

Maximum recovery time to within 1% of initial set

point due to a 50% load change, 1A/µs.

12V or 48V output:

Standby output:

Maximum deviation:

12V or 48V output:

Standby output:

400

2

2

4

µs

ms

%

%

Turn-On Delay

Time required for initial output voltage stabilization

after application of AC input..

1.5

Sec

Output Regulation

See Model Selection table.

Protection

Parameter

Conditions/Description

Min.

Nom.

Max.

Units

FNP600-12 &

FNP850-12

Latch-style overvoltage protection.

Output adjusted to 12V:

14.4

15

15.6

V

FNP600-12:

FNP850-12:

Latch-style overvoltage protection.

Output adjusted to 7V:

8.75

8.44

9.04

8.75

9.33

9.1

V

Overvoltage

Protection

FNP600-48 &

FNP1000-48

Latch-style overvoltage protection.

Output adjusted to 48V:

57

1

60

V

FNP600-12

Current limit.12V output:

12V Standby output:

54

0.55

56

0.75

61

1.0

A

FNP850-12

Current limit.12V output:

12V Standby output:

77

0.55

80

0.75

88

1.0

A

FNP600-48

Current limit.48V output:

12V Standby output:

13

0.75

14

16

1.75

A

Overcurrent

Protection

(Power supply

recovers when short

is removed.)

FNP1000-48

Current limit.48V output:

12V Standby output:

22

0.75

23

25

1.75

A

Short-Circuit

Protection

Power supply recovers when short is removed.

Overtemperature/

Fan Failure Warning

FNP 12V or 48V Vo1 supply output will shut down in the event of an overtemperature condition or blocked

fan rotor. Supply's fan and Vaux are active. Power supply will recover when OT condition is removed.

Amber OT LED will turn ON to indicate fault condition.

OT/Fan Fail is an open-collector signal with 20-mA pull-down. High signal indicates a normal operating

condition. Output will go low at least 100 ms before OT condition shuts down the power supply. Internally

pulled up to 5V with a 5.1 kΩ resistor. Note.

2

1

FNP1000-48 overvoltage protection range is 56 V minimum and 60 V maximum.

2

A pull-up to 3.3V can be achieved by terminating the logic signal with a 10 kΩ resistor to logic ground.